the optimistic feeling that all is going to turn out well
"Her optimism was evident as she smiled confidently, convinced that every challenge would ultimately resolve in her favor."
a general disposition to expect the best in all things
"Despite facing constant setbacks, her unwavering optimism kept everyone believing that better days were just around the corner."
a tendency to expect the best, or at least, a favourable outcome
"Despite the rainy forecast ruining our picnic plans, her optimism kept her smiling as she looked forward to finding a better spot nearby."